Hi all, i'm trying to repair (read: frankenstein together) an old dell inspiron M5040 for a friend.
When i got the machine, it already had a nonfunctional screen (they hook it up to their TV for a display, though it hadn't been used in months).
The main issue first of all is that it wouldn't charge. I traced this problem to the rear power jack being loose which it wasn't supposed to be. Bought a replacement jack cable, installed that, and i believe that part is working fine now. However i'm not able to get the laptop working yet..
I've observed the following behaviours:
When the battery is in, and the mains charger is also in, An LED on the front flashes continuously, four orange blinks then one white, repeat ad infinitum. The battery does not seem to charge after being left for a few hours, the machine cannot be turned on.
When the battery is removed, and the mains charger is plugged in, pressing the power switch does something. It causes the front power LED to light up a constant white. However, there is no other activity from the machine at all. Hard drive does not spinup, fan does not start, etc. the light goes off again after about 20 seconds.
This is where i've gotten to so far. I've attempted removing and replugging/seating most of the internal cables, devices and memory dimms, no effect on the issue. i've inspected cables and contacts, found no signs of damage or wear.
Please advise on possible causes for this issue
Edited by Nanako, 17 July 2014 - 07:52 AM.